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Finding the Fourth Proportional to 70,666.60, 105,934 and 23,886.76

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Solution

The fourth proportional to 70,666.60, 105,934 and 23,886.76 is: 35,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.60 : 105,934 = 23,886.76 : x
  2. Step 2: Convert to fraction form
    70,666.60/105,934 = 23,886.76/x
  3. Step 3: Cross multiply
    70,666.60x = 105,934 × 23,886.76
  4. Step 4: Simplify right side
    70,666.60x = 2,530,420,033.84
  5. Step 5: Solve for x
    x = 2,530,420,033.84/70,666.60
  6. Step 6: Final answer
    x = 35,807.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.